Tornado Cash Sequel Deploys On Optimism

The tool allows users to deposit ETH into a smart contract and later withdraw using a ZKP.

Tornado Cash Sequel Deploys On Optimism

Quick Take

  • Privacy Pools deploys on Optimism.
  • Over 100k users hld unclaimed ETH in the ENS deed contract.
  • MevWallet releases a new extension.
  • EAS is now live on Ethereum Mainnet.

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Optimism Highlights 🔴✨

Tornado Cash Sequel Deploys On Optimism
Privacy Pools, a privacy tool coined as the sequel to Tornado Cash, is now live on Optimism. The release is experimental and the code has not been audited. The tool allows users to deposit ETH into a smart contract and later withdraw using a zero-knowledge proof, ensuring the deposit and withdraw addresses are unlikable. Unlike Tornado Cash, Privacy Pools features configurable privacy sets, which allow users to dissociate from bad addresses during their withdrawal. The mechanism reduces privacy for hackers and helps users prove their funds originated from positive deposits. Privacy Pools was deployed by MolochDAO creator Ameen Soleimani.

ENS Deed Contract Holds 62k Unclaimed ETH

ENS developer Makoto Inoue shared that more than 135,000 users have not reclaimed their ETH deposits from the initial ENS domain auctions in 2017. In total, over 62,000 ETH remains in the original ENS deed contract and is available for eligible users to re-claim. The funds are from users who bid on domain names in 2017. The first iteration of the ENS registry sold domains through a Vickrey auction. Users were required to submit blind bids and the winner paid the price of the second-highest bid. Winners were then required to keep their bid locked in the deed contract for at least one year and for as long as they held their domain. ENS later upgraded its contracts in 2019, removing the need to keep winning bids locked.

Multi-Verifiers For Validating Bridge Protocols

Scroll researcher Toghrul Maharramov proposed the use of a redundant validating bridge, or multi-verifier, as a hedge against smart contract exploits. First presented by Vitalik in late 2022, a multi-prover uses multiple schemes, such as fraud proofs and zero-knowledge proofs, to enforce the state transition in a rollup. Based on the idea of a multi-prover, the proposed multi-verifier consists of a public API, shared storage, and both a Solidity and Vyper implementation of the validating bridge. The design only requires for one of the implementations to be correct to ensure the security of validating bridge-based protocols. It does not protect against vulnerabilities from incorrect specifications.

MevWallet Extension Release

Nomad founder James Prestwich released an extension for MevWallet that features a real-time bidding (RTB) API. The extension allows Searchers to provide tips to users in hopes of being allowed to include the user’s transaction in their current bundle. MevWallet is a smart contract wallet that allows users to capture MEV from Searchers. Prestwich says that in the future, user transactions will bypass the public mempool entirely. Instead of users having to compete in the mempool, Searchers would compete for individual transactions. The code for MevWallet has not yet been audited. MevWallet aims to change the relationship between users and MEV entities.

EAS Deploys On Ethereum Mainnet

Ethereum Attestation Service (EAS) is now live on Ethereum Mainnet. EAS is an open-source tool for creating on-chain and off-chain attestations. The recent launch includes a block explorer for attestations, a developer SDK, a schema builder, and an attestation builder. EAS says it will now focus on improving the builder experience and creating educational documentation.